CN108941965A - Heavy water reactor spentnuclear fuel basket welds newel butt joint and welds 1#-2 comparison test block - Google Patents
Heavy water reactor spentnuclear fuel basket welds newel butt joint and welds 1#-2 comparison test block Download PDFInfo
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- CN108941965A CN108941965A CN201811071077.2A CN201811071077A CN108941965A CN 108941965 A CN108941965 A CN 108941965A CN 201811071077 A CN201811071077 A CN 201811071077A CN 108941965 A CN108941965 A CN 108941965A
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- test block
- newel
- butt joint
- basket
- water reactor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to Nuclear Power Station's Exhausted Fuels transmission technique fields, 1#-2 comparison test block is welded more particularly to a kind of welding newel butt joint of heavy water reactor spentnuclear fuel basket, purpose is to develop a set of heavy water reactor spentnuclear fuel basket welding newel butt joint 1#-2 comparison test block, to ensure to verify fuel-basket welding quality, it is safe and reliable when ensuring fuel-basket lifting, it effectively prevent since there are problems to cause the risk fallen when lifting presence for newel welding quality.It is characterized by: its generally cuboid；The first detection hole is offered in test block front end face center；The second detection hole is offered in test block rear end face center left；Above-mentioned detection hole is for simulating defect present in weld seam.The newel butt joint 1#-2 comparison test block that the present invention describes, securely and reliably, easy to use, stability is strong, high financial profit, it is ensured that fuel-basket newel welding quality avoids the problem that fuel-basket newel.
Description
Technical field
The invention belongs to Nuclear Power Station's Exhausted Fuels transmission technique fields, and in particular to a kind of heavy water reactor spentnuclear fuel basket welding center
1#-2 comparison test block is welded in column butt joint.
Background technique
The interim dry storage of spentnuclear fuel is Qinshan Phase II NPP new projects, and wherein spentnuclear fuel basket is dry inventory item capital equipment,
It is directly used in loading spentnuclear fuel, and structure is circle, and material is stainless steel, its crucial road You Ji weld seam is especially important, fuel
The welding process requirement level of basket newel butt weld etc., these weld seams is higher, and is multilayer weld, in order to verify these welderings
The quality of seam, devise thus welding newel butt joint 1#-2 comparison test block, that is, by ultrasonic examination probe, will in
The inspection result of stem welding test block is recorded, and is compared with the newel welding inspection of manufacturing firm record, is such as compared
As a result it is lower than test block, there are problems with regard to illustrating manufacturing firm's welding quality, to ensure its welding quality.
Summary of the invention
It is an object of the invention to develop a set of heavy water reactor spentnuclear fuel basket welding newel butt joint 1#-2 to compare examination
Block, it is safe and reliable when ensuring fuel-basket lifting to ensure to verify fuel-basket welding quality, it effectively prevent welding due to newel
There are problems to cause the risk fallen when lifting presence for quality.
The present invention is implemented as follows:
A kind of heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block, generally cuboid；?
Test block front end face center offers the first detection hole；The second detection hole is offered in test block rear end face center left；It is above-mentioned
Detection hole is for simulating defect present in weld seam.
Test block entire length is 200mm, width 100mm, is highly 20mm；First detection bore dia is 1.5mm, hole depth
30mm, away from lower end surface 10mm, away from left side 100mm；Second detection bore dia is 1.5mm, hole depth 30mm, away from lower end surface 10mm,
Away from right side 92.23mm.
Left part etching and processing in test block upper surface identifies, and word depth 0.2mm etches position pigment coloration.
Test block integrally uses 022Cr19Ni10 type stainless steel material to be made.
The beneficial effects of the present invention are:
The newel butt joint 1#-2 comparison test block that the present invention describes, securely and reliably, easy to use, stability is strong, economical
High efficiency, it is ensured that fuel-basket newel welding quality avoids fuel-basket newel weld seam from having stomata, welding not firm and other.It is logical
Newel butt joint 1#-2 is crossed than the waveform that test block is detected, is compared, has with fuel-basket newel medial surface welding position
Effect has ensured welding quality on the inside of fuel-basket newel, it is ensured that the welding of fuel-basket newel is intact.It can be with effective guarantee fuel
The welding quality of basket newel.
Detailed description of the invention
Fig. 1 is the structural representation of heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention
Figure；
Fig. 2 is the main view of heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention；
Fig. 3 is the top view of heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention；
Fig. 4 is the rearview of heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention；
Fig. 5 is tested using heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention
The structural schematic diagram of fuel-basket newel top inspection position；
Fig. 6 is tested using heavy water reactor spentnuclear fuel basket welding newel butt joint welding 1#-2 comparison test block of the invention
The structural schematic diagram of fuel-basket center column bottom inspection position；
Wherein: the top D. weld seam, K. bottom welding seam.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4,1#-2 comparison test block is welded in a kind of heavy water reactor spentnuclear fuel basket welding newel butt joint, whole
Body is cuboid.The first detection hole is offered in test block front end face center.It is offered in test block rear end face center left
Second detection hole.Above-mentioned detection hole is for simulating defect present in weld seam.
Test block entire length is 200mm, width 100mm, is highly 20mm.First detection bore dia is 1.5mm, hole depth
30mm, away from lower end surface 10mm, away from left side 100mm.Second detection bore dia is 1.5mm, hole depth 30mm, away from lower end surface 10mm,
Away from right side 92.23mm.
Left part etching and processing in test block upper surface identifies, and word depth 0.2mm etches position pigment coloration.
In the present embodiment, test block integrally uses 022Cr19Ni10 type stainless steel material to be made.
Application method of the invention is as follows:
1. the probe using ultrasonic nondestructive testing device is scanned test block, records institute's detection waveform and store to super
Sound wave non-destructive testing device；
2. as shown in figure 5, in the probe of ultrasonic nondestructive testing device is placed at the weld seam D of fuel-basket newel top
Side, and be compared with the test block detection waveform of storage, if the detection waveform amplitude at the weld seam D of top is greater than test block and detects wave
The amplitude of shape then illustrates that there are problems for weldquality herein, need to further do PT penetration inspection, detect venthole position and carry out
Corresponding repair welding.
3. carrying out Ultrasonic Nondestructive again after the completion of repair welding, examined using the probe of ultrasonic nondestructive testing device
It looks into, and is compared with the test block detection waveform of storage, detected as detected the detection waveform amplitude at top weld seam D again less than test block
The amplitude of waveform then illustrates this weld seam no problem, meets welding requirements.As detected the detection waveform vibration at top weld seam D again
Width is still greater than the amplitude of test block detection waveform, then illustrates that this weld seam problem still remains, and needs to carry out repair welding until meeting the requirements.
4. as shown in fig. 6, the probe of ultrasonic nondestructive testing device is placed at the weld seam K of Central Fuel column bottom inside,
Probe carries out circular motion and is compared with the test block detection waveform of storage, if the detection waveform amplitude at bottom welding seam K
Greater than the amplitude of test block detection waveform, then illustrate that there are problems for weldquality herein, need to further do PT penetration inspection, detect
Stomata position simultaneously carries out corresponding repair welding.
5. carrying out Ultrasonic Nondestructive again after the completion of repair welding, examined using the probe of ultrasonic nondestructive testing device
It looks into, and is compared with the test block detection waveform of storage, detected as detected the detection waveform amplitude at bottom welding seam K again less than test block
The amplitude of waveform then illustrates this weld seam no problem, meets welding requirements.As detected the detection waveform vibration at bottom welding seam K again
Width is still greater than the amplitude of test block detection waveform, then illustrates that this weld seam problem still remains, and needs to carry out repair welding until meeting the requirements.
The above is only the preferred embodiments of the invention, is illustrated herein: method based on the principle of the invention improve and
Structural adjustment all will be regarded as protection scope of the present invention.
Claims (4)
1. 1#-2 comparison test block is welded in a kind of heavy water reactor spentnuclear fuel basket welding newel butt joint, it is characterised in that: it is generally
Cuboid；The first detection hole is offered in test block front end face center；Second is offered in test block rear end face center left
Detection hole；Above-mentioned detection hole is for simulating defect present in weld seam.
2. 1#-2 comparison test block is welded in heavy water reactor spentnuclear fuel basket welding newel butt joint according to claim 1, special
Sign is: test block entire length is 200mm, width 100mm, is highly 20mm；First detection bore dia is 1.5mm, hole depth
30mm, away from lower end surface 10mm, away from left side 100mm；Second detection bore dia is 1.5mm, hole depth 30mm, away from lower end surface 10mm,
Away from right side 92.23mm.
3. 1#-2 comparison test block is welded in heavy water reactor spentnuclear fuel basket welding newel butt joint according to claim 1, special
Sign is: the left part etching and processing in test block upper surface identifies, and word depth 0.2mm etches position pigment coloration.
4. 1#-2 comparison test block is welded in heavy water reactor spentnuclear fuel basket welding newel butt joint according to claim 1, special
Sign is: test block integrally uses 022Cr19Ni10 type stainless steel material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071077.2A CN108941965A (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket welds newel butt joint and welds 1#-2 comparison test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071077.2A CN108941965A (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket welds newel butt joint and welds 1#-2 comparison test block |
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| Publication Number | Publication Date |
|---|---|
| CN108941965A true CN108941965A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811071077.2A Pending CN108941965A (en) | 2018-09-14 | 2018-09-14 | Heavy water reactor spentnuclear fuel basket welds newel butt joint and welds 1#-2 comparison test block |
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